Manuals / Bunn / Kitchen Appliance / Coffeemaker

Bunn JDF-4SB, JDF-4D manual SERVICE CONT Solenoid - Inlet all Models, BRN to Control Board

Models: JDF-4D JDF-4SB JDF-4S

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SERVICE (CONT.)

SERVICE (CONT.)

Solenoid - Inlet (all Models)

P1445.40

FIG. 63 INLET SOLENOID VALVE

Location:

The inlet solenoid is located inside on the rear of the dispenser base.

If the sound is heard as described and water will not pass through the solenoid valve, there may be a block- age in the water line before the solenoid valve or, the solenoid valve may require inspection for wear, and removal of waterborne particles.

If the sound is not heard as described, replace the solenoid valve.

Removal and Replacement:

1.Remove the two wires from the solenoid valve.

2.Turn off the water supply to the dispenser.

3.Disconnect the water lines to and from the solenoid valve.

4.Remove the two #8-32 screws securing the sole- noid to the dispenser base. Remove solenoid.

5.Install new solenoid valve on the dispenser base and secure with the two #8-32 screws.

6.Securely fasten the water lines to and from the solenoid valve.

7.Refer to Schematic Wiring Diagrams when recon- necting the wires.

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Disconnect the two wires from the solenoid valve.

3.Check for continuity across the solenoid valve coil terminals.

If continuity is present as described, reconnect the two wires to the solenoid.

If continuity is not present as described, replace the solenoid valve.

4.Check the solenoid valve for coil action. Connect the dispenser to the power source. Listen carefully in the vicinity of the solenoid valve for a “clicking” sound as the coil magnet attracts.

5.Disconnect the dispenser from the power source.

BRN to Control Board

WHI to Control Board

120V 1.2 kΩ

230V 3.84 kΩ

P1217

FIG. 64 INLET SOLENOID VALVE TERMINALS

45	49179	110613

Image 45

Bunn JDF-4SB, JDF-4D manual SERVICE CONT Solenoid - Inlet all Models, BRN to Control Board

Contents

JDF-2S, JDF-4S JDF-4D, JDF-4SB SERVICE & REPAIR MANUALBUNN-O-MATIC CORPORATION 49179.0000C 02/14 2013 Bunn-O-Matic CorporationBUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY Safety first CONTENTSBasic Maintenance Preventive MaintenanceRecommended Daily Cleaning Instructions REQUIRED REGULAR MAINTENANCE PROBLEM TROUBLESHOOTINGPROBABLE CAUSE Cold Water CirculationRefrigeration TROUBLESHOOTING ContinuedDispenser Locked Out PROBLEMPROBLEM TROUBLESHOOTING ContinuedPROBABLE CAUSE REMEDYwater only concentrate onlyTROUBLESHOOTING Continued PROBLEMPROBLEM TROUBLESHOOTING Continued1. Initial fill/setup PROBABLE CAUSEPROBLEM TROUBLESHOOTING Continuedfrom bag-in-box connector to bottle PROBABLE CAUSECOMPONENT ACCESS SERVICEFIG. 1 ACCESS PANELS SERVICECONT ACCESS PANELSJDF-4S shown 49179The JDF-4S uses 2 of the two head dispense platforms SERVICECONT DISPENSE PLATFORM REMOVALSERVICE CONT Ballast JDF-2S,4S FIG. 3 BALLASTLocation SERVICE CONT Cabinet Fan all Models LocationFIG. 5 CABINET FAN GRN Wire SERVICE CONT LG Compressor JDF-2S,4S,4DSERVICE CONT Compressor Cont FIG. 11 COMPRESSOR SERVICE CONT GD Compressor JDF-2S,4S,4DLocation FIG.12 COMPRESSOR THERMALSERVICE CONT Compressor Cont BLU/BLK GRN WHIPlugs into Relay 230V shown SERVICE CONT Compressor JDF-4SBBLU/BLK SERVICE CONT Compressor ContBLU from Capacitor BRN from CapacitorFIG. 19 COMPRESSOR SWITCH SERVICE CONT Compressor Switch all ModelsLocation RED/BLK BLKFIG. 21 CONDENSER FAN SERVICE CONT Condenser Fan all ModelsLocation BLU/BLKSERVICE CONT Control Board, Main all Models Disconnect the dispenser from the power source SERVICE CONT Portion Control Board JDF-2S,4SFIG. 28 CONTROL BOARD CONNECTORS SERVICE CONT Push Button Control Board JDF-4DPortion Control Board JDF-4D SERVICE CONTSERVICE CONT Circulation Pump all Models FIG. 33 DISPENSE PLATFORM SWITCH SERVICE CONT Dispense Platform Switch all ModelsSERVICE CONT Dispense Pump all Models except JDF-4D SERVICE CONT Dispense Motor all Models FIG. 38 DISPENSE MOTOR CONNECTORSFIG. 37 DISPENSE MOTOR FIG. 39 DISPENSE VALVE SERVICE CONT Dispense Valve all ModelsDispense Station #1 WHI/VIO #3 WHI/VIO Dispense Station #4 WHI/ORN YEL to Control BoardP1449 SERVICE CONT Dispense Switches JDF-2S, JDF-4SSERVICE CONT Cold Water Dispense Switch JDF-4S only Location SERVICE CONT Dispense Membrane Switch all ModelsSERVICE CONT FIG. 48 MEMBRANE SWITCHCold Water Dispense Membrane Switch all Models FIG.47 MEMBRANE SWITCHESSERVICE CONT EMI Filter all Models FIG. 49 EMI FILTERJDF-4S shown SERVICE CONT Lamps, Holders and Ballasts Early Models FIG. 51 LAMPS & HOLDERSFIG. 52 LAMP HOLDERS SERVICE CONT LED Lamps JDF-2S, JDF-4S Rectifier JDF-2S, JDF-4S SERVICE CONTFIG. 55 RECTIFIER Relay all Models SERVICE CONTFIG. 57 RELAY Resistor all 230V Models SERVICE CONTFIG. 59 RESISTOR WHI/VIO to Control Board SERVICE CONT Solenoid - Cold Water JDF-4S onlyWHI to Control Board FIG. 62 COLD WATER SOLENOIDBRN to Control Board SERVICE CONT Solenoid - Inlet all ModelsTEMP SERVICE CONT Temperature Probe all ModelsRESISTANCE VOLTAGEFIG. 67 TEMPERATURE SENSOR SERVICE CONT Temperature Sensor all ModelsTEMP RESISTANCEWHI/BLU to Control SERVICE CONT Transformer all ModelsBoard J6-1,J12-1 to ControlWHI/GRN - T8 SERVICE CONT Transformer - Lited Doors JDF-2S, JDF-4SWHI/BLK - T12 WHI - 120V T2, 240V T6Station Triac MapStation StationSCHEMATIC WIRING DIAGRAM JDF-2S DIAGRAM for JDF-2S LED Lited DoorsELECTRICAL SCHEMATIC Models with 2 WIREModels with Flourescent Lited Doors ELECTRICAL SCHEMATIC DIAGRAM for JDF-2SSCHEMATIC WIRING DIAGRAM JDF-2SSCHEMATIC WIRING DIAGRAM JDF-4S ELECTRICAL SCHEMATIC DIAGRAM for JDF-4S Models with LED Lited Doors2 WIRE SINGLE PHASESCHEMATIC WIRING DIAGRAM JDF ELECTRICAL SCHEMATIC DIAGRAM for JDF-4S2 WIRE SINGLE PHASE Models with Flourescent Lited DoorsPress & Release Models ELECTRICAL SCHEMATIC DIAGRAM for JDF-4DSCHEMATIC WIRING DIAGRAM JDF-4D 2 WIRESCHEMATIC WIRING DIAGRAM JDF-4D ELECTRICAL SCHEMATIC DIAGRAM for JDF-4D Portion Control Models2 WIRE SINGLE PHASESCHEMATIC WIRING DIAGRAM JDF-4S-SB ELECTRICAL SCHEMATIC DIAGRAM for JDF-4S-SB2 WIRE SINGLE PHASE